Extension course and University extension

Extension course noun - A course offered as part of an extension service.

University extension and extension course are semantically related. In some cases you can replace phrase "University extension" with "Extension course", this phrases are similar.

University extension noun - An educational opportunity provided by colleges and universities to people who are not enrolled as regular students.

Extension course and university extension are semantically related. Sometimes you can replace phrase "Extension course" with "University extension", this phrases are similar.